Remove Service Policy from Routed Ports

Unanswered Question
Sep 23rd, 2010

Hello everybody,

I must change the QoS configuration on a router Cisco 871 (IOS: IP services 12.4(24) T1). The service policy is applied to the routed port, fastethernet4.

Can I do the changes from within the policy-map configuration without removing the service policy? Will the effects take place as soon as I press enter?

If I'll have to remove the service policy before doing any change, will this trigger the port to go down because the policy map is actually policing? I was thinking in that case to put an access list inbound on the WAN port to stop all traffic..

Thanks.

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
Loading.
sumitava123 Fri, 09/24/2010 - 01:05

Hi ,

It depends upon the configuration. Please share the config of the class-map,policy-map and the acl(if any ) .

Sumit

Lei Tian Fri, 09/24/2010 - 04:27

Hi,

Yes,you can modify the policy-map with service-policy attached to interface.

Regards,

Lei Tian

danrya Fri, 09/24/2010 - 10:23

You can change the policy-map and attached class-maps while it's attached to the interface.

All changes take affect upon pressing enter!

If you delete an ACL or remove the match statement from the Class-map traffic will stop matching and look to the next class-map.

You need to be very careful when doing this and make sure you understand what will happen when you make the change.  For example

Your matching a /32 address and not policing, but then matching a /24 that includes the /32, but policing the subnet to a CIR.  This allows the single /32 to use all bandwidth but the other devices are policed down.

If you remove the ACL for the /32 or remove the class for the /32 it will then match with the /24.  That could cause a loss of traffic on the IP address.

Dan

Actions

This Discussion